CN114660257B - Flaw detection device for steel wire rope - Google Patents
Flaw detection device for steel wire rope Download PDFInfo
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- CN114660257B CN114660257B CN202210236095.1A CN202210236095A CN114660257B CN 114660257 B CN114660257 B CN 114660257B CN 202210236095 A CN202210236095 A CN 202210236095A CN 114660257 B CN114660257 B CN 114660257B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 136
- 239000010959 steel Substances 0.000 title claims abstract description 136
- 238000001514 detection method Methods 0.000 title claims abstract description 49
- 239000002184 metal Substances 0.000 claims description 56
- 229910052751 metal Inorganic materials 0.000 claims description 56
- 238000000926 separation method Methods 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 description 42
- 238000010586 diagram Methods 0.000 description 19
- 239000003292 glue Substances 0.000 description 15
- 238000005520 cutting process Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 8
- 238000004804 winding Methods 0.000 description 8
- 230000008263 repair mechanism Effects 0.000 description 7
- 238000007493 shaping process Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000002457 bidirectional effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000008531 maintenance mechanism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/20—Metals
- G01N33/204—Structure thereof, e.g. crystal structure
- G01N33/2045—Defects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0208—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles
- B05C5/0212—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles only at particular parts of the articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F11/00—Cutting wire
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
- B29C63/04—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The application relates to a flaw detection device for a steel wire rope, which comprises an outer ring body and an inner ring body, wherein the inner ring body comprises a sorting disc, the sorting disc is provided with a detection through hole for the steel wire rope to pass through and a gap for the tilted steel wire to pass through, the detection through hole is communicated with the gap, and whether the steel wire passes through the gap is detected to judge whether the surface of the steel wire rope has tilted steel wire breakage; the inner ring body and the outer ring body adopt detachable matching structures, the tilted steel wire strands cannot be trapped on the surface of the sorting disc through the gaps, the sorting disc is further extruded until the inner ring body is extruded from the outer ring body, and accordingly whether the tilted steel wire strands exist on the surface of the steel wire rope is judged. The application can detect the losses of different types of steel wire ropes.
Description
Technical Field
The invention relates to a flaw detection device for a steel wire rope.
Background
In steel production enterprises, the workshop production is not separated from the hoisting and moving of steel, so that hoisting equipment is required to be frequently used, and a steel wire rope is a key accessory of the hoisting equipment and is also a core part for safe hoisting. Steel wire ropes used in steel production plants are typically made up of twisted strands of steel wire, each strand being made up of twisted filaments.
According to the requirements of safe production: if the wire rope is broken, a new wire rope needs to be replaced; if the wire rope is broken only by a small amount, the load can be reduced in a short time after the wire rope is processed. It should be noted that after the wire rope breaks, the wire breaking process of the tilting needs to be performed in time, otherwise, the tilted filament will lead to the whole wire rope and aggravate the continuous damage of the wire rope.
At present, the current flaw detection methods for the steel wire ropes in the industry mostly adopt a machine vision method or a magnetic induction method, the schemes have higher flaw detection cost, and are difficult to popularize and apply in engineering practice, so that the current flaw detection for the steel wire ropes still depends on manual inspection.
Disclosure of Invention
The invention aims to design a flaw detection and repair device for a steel wire rope, which can detect the damage type of the steel wire: broken strand or broken wire, and respectively sends out alarm signals according to the damage type.
The invention solves the problems by adopting the following technical scheme: the flaw detection device for the steel wire rope comprises an outer ring body and an inner ring body, wherein the inner ring body comprises a sorting disc, the sorting disc is provided with a detection through hole for the steel wire rope to pass through and a gap for the tilted steel wire to pass through, the detection through hole is communicated with the gap, and whether the steel wire passes through the gap or not is detected to judge whether the tilted steel wire breaks on the surface of the steel wire rope or not; the inner ring body and the outer ring body adopt detachable matching structures, the tilted steel wire strands cannot be trapped on the surface of the sorting disc through the gaps, the sorting disc is further extruded until the inner ring body is extruded from the outer ring body, and accordingly whether the tilted steel wire strands exist on the surface of the steel wire rope is judged.
Specifically, a plurality of gaps are uniformly distributed around the detection through hole; the width of the gap is larger than the diameter of the single steel wire and smaller than the diameter of the steel wire strand, namely the gap only allows the single steel wire to pass through but not the steel wire strand to pass through; and a metal inductor is arranged on the inner wall of the gap and used for detecting the passing steel wire and exciting an alarm.
Specifically, the sorting tray surface is provided with the deflector, the deflector is located around the detection through-hole, the deflector has to the leading edge that the gap extends, and the wire of perking slides into along the leading edge of deflector the gap.
Specifically, a gap exists between the inner wall of the detection through hole and the steel wire rope, and the maximum gap between the detection through hole and the steel wire rope is smaller than the diameter of a single steel wire, namely the tilted steel wire cannot pass through the through hole together with the steel wire rope.
Specifically, the separation disc is located in the circular ring of the outer ring body, and the separation disc and the outer ring body are in detachable elastic clamping connection: the outer peripheral surface of the sorting disc is provided with a radial accommodating cavity, a metal ball and a spring are arranged in the accommodating cavity, the spring is propped against the metal ball to enable the metal ball to always have an outward ejection trend, a limiting structure for preventing the metal ball from completely falling out is arranged at an outlet of the accommodating cavity, and the limiting structure allows the metal ball to at least expose part of the spherical surface; the inner ring surface of the outer ring opposite to the separation disc is provided with a bayonet, a part of the exposed spherical surface of the metal ball is just clamped into the bayonet, when the separation disc is continuously extruded, the metal ball slides out of the bayonet against the elasticity of the spring, and at the moment, the separation disc breaks loose from the outer ring body.
Specifically, be provided with the metal detector that is used for detecting the metal ball in the outer loop body, when the separation dish struggles outer loop body, the metal ball slides in the bayonet socket of outer loop body, the metal detector can't detect the metal ball and will arouse the warning.
Further, in the case where individual wires are broken to form a tilted wire on the surface of the wire rope, it is necessary to repair the tilted wire on line, and for this purpose, a repair mechanism and an auxiliary mechanism for repairing the tilted wire on line are further provided behind the flaw detection device.
The repairing mechanism comprises a circular ring track and an inner track, wherein the inner track is provided with a first cutter, the first cutter is composed of multiple first cutters, the multiple first cutters can be mutually cohesive or mutually opened relative to the steel wire rope, the multiple first cutters are spliced into a complete first cutter in a mutually cohesive state, a shaping through hole is formed, and the steel wire rope and the tilted steel wire pass through a passageway surrounded by the multiple first cutters in a mutually opened state.
The auxiliary mechanism comprises: the device comprises a second cutter, wherein the second cutter is provided with a circular through hole for a steel wire rope to pass through and entraps a tilted steel wire, and the second cutter is opposite to the first cutter and intercepts the tilted steel wire during relative displacement; the first cutter can rotate along the steel wire rope to displace, and the shaping through hole is used for shaping the cutting position of the steel wire, so that the left steel wire is pressed into a spiral vacancy on the surface of the steel wire rope.
Specifically, be provided with the injecting glue ware on the interior track and be used for spraying glue to wire rope especially steel wire cut-off position, be provided with the pad pasting ware on the interior track and be used for the wire rope especially steel wire cut-off position pad pasting. In the inner track rotating process, the glue injector can spray strong glue to the gaps on the surface of the steel wire, and meanwhile, the winding film is wound on the surface of the steel wire rope. The special effects of this design are: the first cutter limits the steel wire rope to a smooth state without bulges so as to ensure that no new steel wire bulges appear after the broken wire is sheared off; meanwhile, the purpose of glue spraying is to adhere the steel wires remained after cutting to the surface of the steel wire rope, so as to further avoid bulges; the effect of the winding film is to avoid the strong glue adhering the steel wire rope and the first cutter together, and the winding film can further avoid the remaining steel wire bulges. Particularly, the winding film can be scraped and dropped in the subsequent steel wire rope operation process, so that the diameter of the steel wire rope is prevented from being influenced.
Specifically, the ring track can be along wire rope displacement, interior track can be relative the ring track deflection, be provided with one or more permanent magnets on the interior track, be provided with a plurality of electro-magnets on the ring track, the electro-magnet can be controlled alone, the magnetic pole direction after the electro-magnet circular telegram is unanimous with the magnetic pole direction of permanent magnet, realizes that interior track is rotatory around the ring track under the effect of magnetic attraction.
Specifically, the first cutter consists of two first cutter blades, the two first cutter blades are arranged on a bidirectional screw rod, and the bidirectional screw rod is provided with a motor to drive the two first cutter blades to perform clutch action; the opposite surfaces of the two first cutting blades are respectively provided with a half groove, the two half grooves are used for splicing the shaping through holes, and the caliber of the shaping through holes is larger than the diameter of the steel wire rope but smaller than the sum of the diameter of the steel wire rope and the diameter of a broken single steel wire.
Specifically, the first cutter and the second cutter are respectively provided with conical cutters, and the diameters of the cutters are one by one so as to realize staggered cutting and tilting of the steel wires.
Specifically, the second cutter surface sets up the insulating surface, set up the ring conducting plate again on the insulating surface, the ring conducting plate with the second cutter passes through the insulating surface is mutual insulating, and second cutter and ring conducting plate are connected in detection circuit, and when the steel wire of perk was held back the second cutter surface by the second cutter and is extended to the ring conducting plate, the second cutter with the ring conducting plate is switched on by the steel wire of perk temporarily, arouses detection circuit.
The detection mechanism, the repairing mechanism and the auxiliary mechanism are arranged in sequence, and are arranged on the same track and can be displaced relatively along the track.
Compared with the prior art, the invention has the advantages that:
(1) The difference of the broken wire and the broken strand diameter is utilized to identify whether the damage condition of the steel wire rope is broken strand or broken wire and alarm, and the manual flaw detection is not relied on.
(2) The cutting-off treatment of broken wires (tilted steel wires) on line is realized. (3) After cutting off the broken wire, the first cutter rotates to smooth the broken wire by using a shaping channel, limits the steel wire rope to a smooth and non-convex state, and avoids new bulges on the rest section of the wire after cutting off the broken wire; (4) The glue injector is added to spray glue at the wire breakage position of the steel wire rope, so that the cut residual steel wire can be adhered to the surface of the steel wire rope, and continuous tilting is avoided; (5) The film sticking device is added, the film is wound at the wire breakage position of the steel wire rope, the film can further avoid the steel wire from protruding, and meanwhile, strong glue is prevented from adhering the steel wire rope and the first cutter together; (6) The winding film is made of fragile materials, and can be scraped and dropped in the subsequent steel wire rope operation process, so that the influence on the diameter of the steel wire rope is avoided. The design scheme has low cost and strong engineering applicability.
Drawings
FIG. 1 is an overall schematic diagram of a flaw detection modification device for a wire rope in an embodiment of the present invention;
FIG. 2 is a schematic diagram of a detection mechanism according to an embodiment of the present invention;
FIG. 3 is an exploded view of a detection mechanism according to an embodiment of the present invention;
FIG. 4 is a partial cross-sectional view of an inner ring body in accordance with an embodiment of the present invention;
FIG. 5 is a partially exploded view of the inner ring body in accordance with an embodiment of the present invention;
FIG. 6 is an enlarged view of a portion of the inner ring body in accordance with an embodiment of the present invention;
FIG. 7 is an enlarged view of a portion of the inner ring body in accordance with an embodiment of the present invention;
FIG. 8 is an enlarged view of a portion of the inner ring body in accordance with an embodiment of the present invention;
FIG. 9 is a partially exploded view of the outer ring in accordance with an embodiment of the present invention;
FIG. 10 is an enlarged view of a portion of a detection mechanism in an embodiment of the invention;
FIG. 11 is a view showing the inner ring body and the outer ring body detached from each other in accordance with the embodiment of the present invention;
FIG. 12 is a state diagram of a detection mechanism for detecting wire breakage in an embodiment of the present invention;
FIG. 13 is a block diagram of a repair mechanism according to an embodiment of the present invention;
FIG. 14 is an exploded view of a repair mechanism according to an embodiment of the present invention;
FIG. 15 is a partial cross-sectional view of a rotary mechanism in an embodiment of the invention;
FIG. 16 is a view showing an opened state of the upper cutter according to the embodiment of the present invention;
FIG. 17 is a view showing the state of the upper cutter in accordance with the embodiment of the present invention;
FIG. 18 is a block diagram of an upper cutter in an embodiment of the present invention;
FIG. 19 is a partial cross-sectional view of an assembly of a circular ring rail and an inner rail in an embodiment of the present invention;
FIG. 20 is a schematic diagram of the relative deflection of the circular ring track and the inner track in an embodiment of the present invention;
FIG. 21 is a top view of the structure shown in FIG. 20;
FIG. 22 is a block diagram of an accessory mechanism in an embodiment of the present invention;
FIG. 23 is a partial cross-sectional view of an accessory mechanism in an embodiment of the present invention;
FIG. 24 is a view showing the operation state of the upper and lower cutters cutting steel wires in cooperation with each other in the embodiment of the present invention;
FIG. 25 is a first operational state diagram of an apparatus according to an embodiment of the present invention;
FIG. 26 is a second operational state diagram of an apparatus according to an embodiment of the present invention;
FIG. 27 is a third operational state diagram of an apparatus according to an embodiment of the present invention;
FIG. 28 is a fourth operational state diagram of an apparatus according to an embodiment of the present invention;
FIG. 29 is a fifth operational state diagram of an apparatus according to an embodiment of the present invention;
FIG. 30 is a diagram showing a working state of the apparatus according to the embodiment of the present invention;
FIG. 31 is a diagram of a working state of the device according to the embodiment of the present invention;
FIG. 32 is a diagram illustrating an operational status of an apparatus according to an embodiment of the present invention;
FIG. 33 is a diagram of a working state of an apparatus according to an embodiment of the present invention;
FIG. 34 is a view showing a working state of the device according to the embodiment of the present invention;
FIG. 35 is a diagram of an operation state eleventh of the apparatus according to the embodiment of the present invention;
FIG. 36 is a diagram showing a status of operation of the device according to the embodiment of the present invention;
FIG. 37 is a diagram of thirteen working states of the device according to the embodiment of the present invention;
In the figure, a detection mechanism 1, a maintenance mechanism 2, an auxiliary mechanism 3, an inner ring body 4, an outer ring body 5, a first power device 6, a sorting disc 7, a metal sensor 8, a spring 9, a metal ball 10, an outer ring skeleton 11, a metal detector 12, a broken strand of a steel wire rope 13, a broken wire of the steel wire rope 14, a circular ring track 15, a second power device 16, a rotating mechanism 17, an adhesive injector 18, a film sticking device 19, an electromagnet 20, an inner track 21, an upper cutter 22 (a first cutter), a lead screw 23, a permanent magnet 24, a driver 25, a motor 26, a lower cutter 27 (a second cutter), an insulator 28, a circular ring conducting plate 29, a third power device 30 and a vertical track 31.
Detailed Description
The present invention is described in further detail below with reference to the accompanying drawings, which are exemplary and intended to be illustrative of the invention and not to be construed as limiting the invention. The text description in the embodiment corresponds to the drawings, the description related to the orientation is also based on the drawings, and the description is not to be construed as limiting the protection scope of the invention.
The present embodiment relates to a flaw detection and temporary repair device for a wire rope, the flaw detection includes a detection mechanism 1, and the temporary repair device includes a repair mechanism 2 and an auxiliary mechanism 3 (fig. 1). The detection mechanism 1, the repair mechanism 2 and the auxiliary mechanism 3 are all arranged on a vertical track 31 (fig. 1), the detection mechanism 1 is at the uppermost part, the repair mechanism 2 is at the middle part, and the auxiliary mechanism 3 is at the lowermost part. The wire rope passes through the three mechanisms in turn. The detection mechanism 1 is used for automatically detecting whether the damage degree of the steel wire rope belongs to strand breakage or wire breakage; the repairing mechanism 2 has the functions of cutting broken wires of the bulges of the steel wire rope, and gluing and pasting films on the damaged positions to prevent the steel wires from being bulged again; the auxiliary mechanism 3 is used for assisting the repairing mechanism 2 in cutting off broken wires of the steel wire rope bulge.
Specifically, the detection structure 1 includes an inner ring body 4, an outer ring body 5, and a first power device 6 (fig. 3). Wherein the inner ring body 4 comprises a sorting tray 7, a metal sensor 8, a spring 9 and a metal ball 10 (figures 4 and 5); the outer ring body 5 comprises an outer ring skeleton 11 and a metal detector 12 (fig. 9).
Wherein the sorting tray 7 is a disc-shaped structure (fig. 6, 7), and a through hole is formed at the central line of the sorting tray 7, and the through hole allows the steel wire rope to pass through and freely slide; 4 cylindrical cavities A (figure 6) are arranged in the sorting tray 7, the 4 cylindrical cavities A are respectively and uniformly distributed around the central line of the sorting tray, the central line of each cylindrical cavity A is perpendicular to the central line of the sorting tray, and the cylindrical cavities A are used for accommodating springs 9 and metal balls 10 (figures 4 and 5); the sorting disc 7 is provided with 4 straight slits B in the thickness direction, the 4 straight slits B form a cross shape, and the slits B penetrate through the whole sorting disc from top to bottom; the gap B is communicated with a through hole (figure 6) of the sorting tray 7, and the function of the gap B is to allow single broken wire of the steel wire rope to pass through; square grooves C (figure 6) are formed in the side walls of the separation disc gaps B, and the square grooves C are used for installing metal inductors 8 (figure 5); the upper surface of the sorting tray 7 is provided with 4 guide plates along the circumferential line of the through hole, the guide plates are in a cambered triangle shape (fig. 6), the installation gap between the 4 guide plates allows single broken wires of the steel wire rope to pass through, and the installation gap between the 4 guide plates coincides with the position of the gap B (fig. 6), and the guide plates are used for guiding the single broken wires to the gap B to pass through the sorting tray 7 when the steel wire rope moves.
Wherein, metal inductor 8 installs in the square groove C of sorting dish 7, and metal inductor 8's effect is whether to have the steel wire broken wire to pass through gap B.
The caliber of the through hole and the steel wire rope have a clearance, and the maximum clearance between the through hole and the steel wire rope is smaller than the diameter of one broken wire, so that the beneficial effects are that: the protruding broken strands or filaments are not allowed to pass through the round hole.
The outlet of the cylindrical cavity A is of a necking structure (figure 6), and the beneficial effects are that: when the spring 9 and the metal ball 10 are mounted in the cylindrical cavity a, the necking structure limits the metal ball 10 in the cylindrical cavity a, and only part of the arc surface of the iron ball is exposed (fig. 4).
In particular, when the metal ball 10 is pressed, the metal ball 10 may compress the spring 9 to retract the metal ball into the cylindrical cavity a of the sorting tray 7. When the pressing force is eliminated, the metal ball can be reset (fig. 8).
The width of the gap B is larger than the diameter of the individual wires and smaller than the diameter of the individual wires. The beneficial effects are that: only broken strands of the wire rope are allowed to pass through, and broken strands of the wire rope are not allowed to pass through (fig. 6).
The outer surface of the metal inductor 8 is flush with the surface of the gap B (figure 4), and has the beneficial effects that: avoiding the obstruction of the broken wire of the steel wire rope to pass through the gap B.
In particular, the uppermost end of the guide plate is provided with an arc angle (fig. 7).
The sorting disc 7 is made of plastic, and has the beneficial effect of not scratching the steel wire rope.
The outer ring body 5 comprises an outer ring skeleton 11 and a metal detector 12 (fig. 9). One end of the outer ring skeleton 11 is a ring-shaped structure, 4 cavities D (fig. 9) are uniformly formed in the ring-shaped structure, the right side of each cavity D is a cylindrical cavity for mounting the metal detector 12, the middle of each cavity D is a through hole section, and the left end of each cavity D is a small hemispherical cavity (fig. 9) for matching with the exposed part (fig. 4) of the metal ball 10.
The small hemispherical cavities at the 4 cavity positions D of the outer ring body 5 correspond to the positions of the balls 10 of the inner ring body 4 one by one, and the small hemispherical cavities of the accommodating cavities D are consistent with the diameters of the metal balls 10.
The installation mode is as follows: the sorting disc 7, the metal sensor 8, the spring 9 and the metal ball 10 are arranged to form an inner ring body 4 (figures 4 and 10); the inner ring body 4 is clamped into the outer ring body 5 through the metal balls 10 (fig. 10); the outer ring skeleton 11 of the outer ring body is installed in the vertical track 31; the first power unit 6 is mounted to the outer ring frame 11 and engaged into the vertical rail.
The repairing mechanism 2 (fig. 1 and 13) comprises a circular ring track 15, a second power device 16, a rotating mechanism 17, an adhesive injector 18, a film sticking device 19 and an electromagnet 20 (fig. 14).
One end of the circular ring rail 15 is in a circular ring structure, and 4 electromagnets 20 are uniformly distributed on the outer surface of the circular ring (fig. 14). The circular ring rail 15 is mounted on the vertical rail 31; the second power means 16 is mounted to the circular track 15 and engages into the vertical track 31. The second power device 16 may drive the service mechanism 2 up and down.
The rotation mechanism 17 includes an inner rail 21, an upper cutter 22, a screw 23, a permanent magnet 24, a driver 25, and a motor 26 (fig. 15 and 16). The inner rail 21 is an annular groove structure, the groove size is consistent with the size of the annular rail 15, and the inner rail 21 and the annular rail 15 are assembled together, so that the inner rail 21 can rotate relative to the annular rail 15 (fig. 19). The screw rods 23 are arranged in the middle of the inner track 21, the number of the screw rods is 2 (fig. 15), and the screw rods are bidirectional screw rods, so that clamping or loosening can be realized. The upper half part of the upper cutter 22 is a square semicircular groove structure, the lower part is a conical cutter structure (figure 18) surrounding the semicircular groove, the number of the cutters is 2, and the two cutters are mounted on the screw rod 23 and can be clamped or released back along with the screw rod (figures 16 and 17). The motor 26 and the driver 25 provide driving force to the screw 23. The number of permanent magnets 24 is 2, and they are symmetrically installed on the outer circumferential wall surface of the inner rail 21 (fig. 20). The dispenser 18 and the laminator 19 are mounted on the upper surface of the right side upper cutter 22 (fig. 19) and move therewith (fig. 16).
In particular, the screw rod is a bidirectional screw rod, and the opposite clamping or the opposite release of the upper cutter can be realized (fig. 16 and 17). The upper half of the upper cutter 22 has a square semicircular groove structure, and the lower half has a conical cutter structure (fig. 18) surrounding the semicircular groove.
The number of the upper cutters 22 is two, when the two semicircular grooves are clamped in opposite directions, the two semicircular grooves form a circular hole groove (a shaping through hole), the diameter of the circular hole groove is slightly larger than the diameter of the steel wire rope (figure 17), but smaller than the sum of the diameter of the steel wire rope and the diameter of a single broken wire of the bulge, and the structure has the advantages that the complete steel wire rope is allowed to slide freely, namely, the structure can limit the steel wire rope to be in a smooth state without additional bulge.
The direction of the magnetic poles of the electromagnets 20 mounted on the outer surface of the circular ring rail 15 after the energization is identical to the direction of the magnetic poles of the permanent magnets 24 mounted on the outer circumferential wall surface of the inner rail 21.
The on-off states of the 4 electromagnets 20 are individually controlled.
When the two upper cutters 22 are closed, the glue nozzle of the glue injector 18 is aligned with the wire rope (fig. 17).
When the two upper cutters 22 are closed, the film applicator 19 applies the wound film to the surface of the wire rope (fig. 17).
The rotation working principle of the rotation mechanism is as follows:
The 4 electromagnets mounted on the outer surface of the circular ring rail 15 are alternately supplied with power in the clockwise direction, and the inner rail 21 can rotate clockwise around the circular ring rail 15 under the action of magnetic attraction force because the magnetic pole direction of the electromagnet 20 is identical to the magnetic pole direction of the permanent magnet 24 after the electromagnet is electrified. Accordingly, the other parts mounted on the circular ring rail 15 are rotated with them (fig. 20, 21).
The auxiliary mechanism 3 (fig. 1, 22) includes a lower cutter 27, an insulator 28, a circular conductive plate 29, and a third power device 30 (fig. 23).
Wherein one end of the lower cutter 27 is in a conical cutter shape (fig. 23), and the other end is mounted on a vertical rail 31; the lower cutter is provided with a circular through hole.
Wherein the third power means is mounted on the lower cutter 27 and engages with the vertical rail 31 to drive the auxiliary mechanism 3 up and down (fig. 22).
The insulator 28 is in a circular ring shape, and is fitted in the lower cutter 27 (fig. 23).
Wherein a circular conductive plate is mounted over the insulator and coaxial with the lower cutter 27 (fig. 23).
The edge of the lower cutter 27 is conical (fig. 23).
The caliber of the lower cutter 27 is slightly larger than that of the upper cutters 22 after closing, and the upper cutters and the lower cutters form an arc cutter (fig. 24). The cutting device has the advantages that the position of the knife edge of the upper cutter 22 can cut into the knife edge of the lower cutter 27, so that the cutting effect is realized (figure 34).
In particular, the lower cutter 27 and the circular conductive plate 29 are connected to the same detection circuit, and when the wire rope breaks, the broken wire 14 is guided and extended by the conical cutter structure of the lower cutter 27, and the circular conductive plate 29 and the lower cutter 27 communicated with the extended broken wire 14 send a signal to the control system (fig. 30).
The lower cutter 27 is made of conductive material.
Working principle of the flaw detection repairing device of the embodiment is as follows:
(1) If the wire rope has a problem of "strand breakage", as shown in fig. 25, the strand breakage 13 of the wire rope is raised, and along with the movement of the wire rope, the strand breakage 13 of the wire rope contacts and presses the sorting tray 7 (fig. 27), and since all the gaps on the sorting tray are smaller than the diameter of the single strand wire rope, the strand breakage 13 cannot pass through the sorting tray 7. When the wire rope continues to move, the extrusion force of the broken strand 13 of the wire rope to the sorting disc is gradually increased, and when the extrusion force is increased to a certain degree, the metal ball 10 is separated from the accommodating cavity D of the outer ring framework 11, and at the moment, the metal ball 10 compresses the spring 9 and is retracted into the accommodating cavity A on the sorting disc 7. Thereafter, under continued compression of the broken strands 13 of the wire rope, the sorting tray 7 moves down, and the inner ring body 4 is disengaged from the snap restriction of the outer ring body 5 (fig. 26). At this time, since the metal ball 10 is separated from the cavity D of the outer ring frame 11, the detection signal of the metal detector 12 to the metal ball 10 disappears, and the signal information is transmitted to the control system and alarm processing is performed.
(2) If the wire rope has a problem of "broken wire", as shown in fig. 27, the broken wire 14 of the wire rope is raised at this time, and as the wire rope continues to move, the broken wire 14 of the wire rope moves downward and contacts the sorting tray 7. Since the wire rope break 14 has a smaller diameter than the gap B in the sorting deck 7, as the wire rope continues to move, the wire rope break 14 will, under the influence of the guide plate of the sorting deck 7, follow into and through one of the four gaps B in the sorting deck 7, eventually passing through that gap. In the process, the metal sensor 8 may detect a signal of the broken wire 14 of the wire rope and send the signal to the control system.
(3) After the broken wire 14 of the steel wire rope is sorted and detected by the detecting mechanism 1, the steel wire rope continues to descend (fig. 27) and passes through the gap between the two upper cutters 22 which are not closed in the repairing mechanism 2 (fig. 29).
(4) The broken wire 14 of the steel wire rope moves down continuously, and finally contacts with the lower cutter 27 of the auxiliary mechanism 3, specifically, contacts with the lower cutter 27 and then extends along the conical surface of the lower cutter 27 in a guiding way (fig. 30), the extended broken wire 14 is communicated with the circular conducting plate 29, and the lower cutter 27 and the circular conducting plate 29 are connected in the same direct current circuit, so that an electric signal is generated after the lower cutter 27 and the circular conducting plate 29 are communicated, and the electric signal is sent to the control system to control the operation of the steel wire rope to stop. The electrical signal indicates that the wire rope break 14 has contacted the lower cutter 27 and has been extended by the lower cutter 27 to a degree that the wire rope break 14 is in the preferred cutting position.
(5) The motor 26 and the driver 25 in the repairing mechanism 2 start to work, the screw rod 23 is driven, the screw rod 23 drives the 2 upper cutters 22 to move oppositely and close (fig. 31 and 32), and the closed upper cutters 22 limit the steel wire rope at the center (fig. 32). Then, the second power device 16 drives the whole repairing mechanism 2 to move downwards (fig. 33), and when the repairing mechanism moves downwards to a certain position, the upper cutter 22 and the lower cutter 27 form a circular arc-shaped scissors structure, so that the broken wire 14 of the steel wire rope is cut off (fig. 34).
(6) The third power means 30 then drive the auxiliary mechanism 3 downwards in order to make room (fig. 35).
(7) Thereafter, the second power device 16 drives the entire repair mechanism 2 to slowly move down (fig. 35); at the same time, the inner rail 21 starts to rotate clockwise under the magnetic force (fig. 36). The closed upper cutter can limit the steel wire rope to be in a 'smooth state without bulges', so that the steel wire after being cut off and broken is limited in the original space groove; at this time, the rotation driving mechanism simultaneously rotates and slowly moves down.
(8) Since the "glue nozzle of the glue injector 18 is aligned with the wire rope, and the film applicator 19 is attached to the surface of the wire rope (fig. 17)", strong glue can be sprayed to the gaps between the wires during rotation, while the wrapping film is wrapped around the surface of the wire rope. The special effects of this design are: the upper cutter 22 limits the steel wire rope to a smooth state without bulges so as to ensure that no new bulges appear after the broken wire of the steel wire rope is cut off; meanwhile, the steel wires left after cutting can be adhered by spraying the glue, so that the generation of bulges is further avoided; the winding film has the function of avoiding the adhesion of the steel wire rope and the upper cutter together by the strong adhesive, and simultaneously the winding film can further avoid the protrusion of the steel wire. Particularly, the winding film can be scraped and dropped in the subsequent steel wire rope operation process, so that the influence on the operation of the steel wire rope caused by the diameter of the thickened steel wire rope is avoided.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions that are formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present invention.
Claims (5)
1. The utility model provides a wire rope's detection device that detects a flaw which characterized in that: the steel wire sorting device comprises an outer ring body and an inner ring body, wherein the inner ring body comprises a sorting disc, the sorting disc is provided with a detection through hole for a steel wire rope to pass through and a gap for a tilted steel wire to pass through, the detection through hole is communicated with the gap, and whether the steel wire passes through the gap is detected to judge whether the surface of the steel wire rope is broken or not; the inner ring body and the outer ring body adopt detachable matching structures, the tilted steel wire strands cannot pass through the gap and are trapped on the surface of the sorting disc and further squeeze the sorting disc until the inner ring body is squeezed out of the outer ring body, whether the tilted steel wire strands exist on the surface of the steel wire rope or not is judged according to the fact, a guide plate is arranged on the surface of the sorting disc, the guide plate is located around the detection through hole, the guide plate is provided with a guide edge extending towards the gap, and the tilted steel wire slides into the gap along the guide edge of the guide plate.
2. The flaw detection device for a wire rope according to claim 1, wherein: the plurality of gaps are uniformly distributed around the detection through holes; the width of the gap is larger than the diameter of the single steel wire and smaller than the diameter of the steel wire strand, namely the gap only allows the single steel wire to pass through but not the steel wire strand to pass through; and a metal inductor is arranged on the inner wall of the gap and used for detecting the passing steel wire and exciting an alarm.
3. The flaw detection device for a wire rope according to claim 1, wherein: and gaps exist between the inner wall of the detection through hole and the steel wire rope, and the maximum gap between the detection through hole and the steel wire rope is smaller than the diameter of a single steel wire, namely the tilted steel wire cannot pass through the through hole together with the steel wire rope.
4. The flaw detection device for a wire rope according to claim 1, wherein: the separation disc is positioned in the circular ring of the outer ring body, and the separation disc and the outer ring body are in detachable elastic clamping connection: the outer peripheral surface of the sorting disc is provided with a radial accommodating cavity, a metal ball and a spring are arranged in the accommodating cavity, the spring is propped against the metal ball to enable the metal ball to always have an outward ejection trend, a limiting structure for preventing the metal ball from completely falling out is arranged at an outlet of the accommodating cavity, and the limiting structure allows the metal ball to at least expose part of the spherical surface; the inner ring surface of the outer ring opposite to the separation disc is provided with a bayonet, a part of the exposed spherical surface of the metal ball is just clamped into the bayonet, when the separation disc is continuously extruded, the metal ball slides out of the bayonet against the elasticity of the spring, and at the moment, the separation disc breaks loose from the outer ring body.
5. The flaw detection device for a wire rope according to claim 4, wherein: the metal detector is arranged in the outer ring body and is used for detecting the metal balls, when the separation disc breaks loose from the outer ring body, the metal balls slide from the bayonet of the outer ring body, and at the moment, the metal detector cannot detect the metal balls to excite and alarm.
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| CN114660257A (en) | 2022-06-24 |
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